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nvmf: give tx_desc/rx_desc bufs meaningful names

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Replace the generic "msg_buf" naming with command and response.

Change-Id: I19baff43b41a5eb7db9be9d7feec33d17112e320
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2016-06-23 16:23:46 -07:00
parent f0242ce745
commit 5248414d61
3 changed files with 25 additions and 29 deletions
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4
lib/nvmf/conn.c
View File

@ -434,7 +434,7 @@ static int nvmf_recv(struct spdk_nvmf_conn *conn, struct ibv_wc *wc)
int ret = 0;
rx_desc = (struct nvme_qp_rx_desc *)wc->wr_id;
cap_hdr = (struct spdk_nvmf_capsule_cmd *)&rx_desc->msg_buf;
cap_hdr = &rx_desc->cmd.nvmf_cmd;
/* Update Connection SQ Tracking, increment
the SQ tail consuming a free RX recv slot.
@ -495,7 +495,7 @@ static int nvmf_recv(struct spdk_nvmf_conn *conn, struct ibv_wc *wc)
req->xfer = SPDK_NVME_DATA_NONE;
req->data = NULL;
req->cid = cap_hdr->cid;
req->cmd = &rx_desc->msg_buf;
req->cmd = &rx_desc->cmd;
nvmf_trace_command(cap_hdr, conn->type);

42
lib/nvmf/rdma.c
View File

@ -177,7 +177,7 @@ free_qp_desc(struct spdk_nvmf_conn *conn)
rte_free(tmp_rx->bb);
rc = rdma_dereg_mr(tmp_rx->msg_buf_mr);
rc = rdma_dereg_mr(tmp_rx->cmd_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register rx mr\n");
}
@ -188,7 +188,7 @@ free_qp_desc(struct spdk_nvmf_conn *conn)
STAILQ_FOREACH(tmp_tx, &conn->rdma.qp_tx_desc, link) {
STAILQ_REMOVE(&conn->rdma.qp_tx_desc, tmp_tx, nvme_qp_tx_desc, link);
rc = rdma_dereg_mr(tmp_tx->msg_buf_mr);
rc = rdma_dereg_mr(tmp_tx->rsp_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register tx mr\n");
}
@ -912,10 +912,8 @@ alloc_qp_rx_desc(struct spdk_nvmf_conn *conn)
goto fail;
}
rx_desc->msg_buf_mr = rdma_reg_msgs(conn->rdma.cm_id,
(void *)&rx_desc->msg_buf,
sizeof(rx_desc->msg_buf));
if (rx_desc->msg_buf_mr == NULL) {
rx_desc->cmd_mr = rdma_reg_msgs(conn->rdma.cm_id, &rx_desc->cmd, sizeof(rx_desc->cmd));
if (rx_desc->cmd_mr == NULL) {
SPDK_ERRLOG("Unable to register rx desc buffer mr\n");
goto fail;
}
@ -923,9 +921,9 @@ alloc_qp_rx_desc(struct spdk_nvmf_conn *conn)
rx_desc->conn = conn;
/* initialize recv_sgl of tx_desc */
rx_desc->recv_sgl.addr = (uint64_t)&rx_desc->msg_buf;
rx_desc->recv_sgl.length = sizeof(rx_desc->msg_buf);
rx_desc->recv_sgl.lkey = rx_desc->msg_buf_mr->lkey;
rx_desc->recv_sgl.addr = (uint64_t)&rx_desc->cmd;
rx_desc->recv_sgl.length = sizeof(rx_desc->cmd);
rx_desc->recv_sgl.lkey = rx_desc->cmd_mr->lkey;
/* pre-assign a data bb (bounce buffer) with each RX descriptor */
/*
@ -975,8 +973,8 @@ fail:
rte_free(rx_desc->bb);
if (rx_desc->msg_buf_mr) {
rc = rdma_dereg_mr(rx_desc->msg_buf_mr);
if (rx_desc->cmd_mr) {
rc = rdma_dereg_mr(rx_desc->cmd_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register rx mr\n");
}
@ -995,7 +993,7 @@ fail:
rte_free(tmp->bb);
rc = rdma_dereg_mr(tmp->msg_buf_mr);
rc = rdma_dereg_mr(tmp->cmd_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register rx mr\n");
}
@ -1022,10 +1020,8 @@ alloc_qp_tx_desc(struct spdk_nvmf_conn *conn)
goto fail;
}
tx_desc->msg_buf_mr = rdma_reg_msgs(conn->rdma.cm_id,
(void *)&tx_desc->msg_buf,
sizeof(tx_desc->msg_buf));
if (tx_desc->msg_buf_mr == NULL) {
tx_desc->rsp_mr = rdma_reg_msgs(conn->rdma.cm_id, &tx_desc->rsp, sizeof(tx_desc->rsp));
if (tx_desc->rsp_mr == NULL) {
SPDK_ERRLOG("Unable to register tx desc buffer mr\n");
goto fail;
}
@ -1033,12 +1029,12 @@ alloc_qp_tx_desc(struct spdk_nvmf_conn *conn)
tx_desc->conn = conn;
/* initialize send_sgl of tx_desc */
tx_desc->send_sgl.addr = (uint64_t)&tx_desc->msg_buf;
tx_desc->send_sgl.length = sizeof(tx_desc->msg_buf);
tx_desc->send_sgl.lkey = tx_desc->msg_buf_mr->lkey;
tx_desc->send_sgl.addr = (uint64_t)&tx_desc->rsp;
tx_desc->send_sgl.length = sizeof(tx_desc->rsp);
tx_desc->send_sgl.lkey = tx_desc->rsp_mr->lkey;
/* init request state associated with each tx_desc */
tx_desc->req_state.rsp = &tx_desc->msg_buf;
tx_desc->req_state.rsp = &tx_desc->rsp;
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "tx_desc %p: req_state %p, rsp %p\n",
tx_desc, &tx_desc->req_state,
tx_desc->req_state.rsp);
@ -1051,8 +1047,8 @@ fail:
/* cleanup any partial descriptor that failed during init loop */
if (tx_desc != NULL) {
if (tx_desc->msg_buf_mr) {
rc = rdma_dereg_mr(tx_desc->msg_buf_mr);
if (tx_desc->rsp_mr) {
rc = rdma_dereg_mr(tx_desc->rsp_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register tx mr\n");
}
@ -1064,7 +1060,7 @@ fail:
STAILQ_FOREACH(tmp, &conn->rdma.qp_tx_desc, link) {
STAILQ_REMOVE(&conn->rdma.qp_tx_desc, tmp, nvme_qp_tx_desc, link);
rc = rdma_dereg_mr(tmp->msg_buf_mr);
rc = rdma_dereg_mr(tmp->rsp_mr);
if (rc) {
SPDK_ERRLOG("Unable to de-register tx mr\n");
}

8
lib/nvmf/rdma.h
View File

@ -59,9 +59,9 @@ struct spdk_nvmf_rdma_conn {
/* Define the Admin Queue Rx/Tx Descriptors */
struct nvme_qp_rx_desc {
union nvmf_h2c_msg msg_buf;
union nvmf_h2c_msg cmd;
struct spdk_nvmf_conn *conn;
struct ibv_mr *msg_buf_mr;
struct ibv_mr *cmd_mr;
struct ibv_sge recv_sgl;
struct ibv_sge bb_sgl; /* must follow recv_sgl */
struct ibv_mr *bb_mr;
@ -72,10 +72,10 @@ struct nvme_qp_rx_desc {
};
struct nvme_qp_tx_desc {
union nvmf_c2h_msg msg_buf;
union nvmf_c2h_msg rsp;
struct spdk_nvmf_conn *conn;
struct nvmf_request req_state;
struct ibv_mr *msg_buf_mr;
struct ibv_mr *rsp_mr;
struct ibv_sge send_sgl;
STAILQ_ENTRY(nvme_qp_tx_desc) link;
};